Multi-connected surge protector signal transmission device and surge protector

Abstract

The utility model relates to the field of surge protector equipment, in particular to a multi-connection surge protector signal transmission device and a surge protector. The signal transmission device comprises an intelligent box, the intelligent box comprises a chassis part and an optical fiber, the chassis part is provided with a first support structure and a linkage part, the corresponding position of the optical fiber is in lap joint with the first support structure, and the linkage part is provided with a second support structure. The linkage piece comprises at least two first linkage parts and a second linkage part, each first linkage part is matched with an action piece of a thermal tripping assembly of the surge protector, the second linkage part can be matched with the first support structure, so that the optical fiber is bent, and the end part of the optical fiber is coupled with a monitoring host.

Description

Technical Field

[0001] The utility model relates to the field of surge protector equipment, in particular to a multi-connection surge protector signal transmission device and a surge protector. Background Art

[0002] The function of a surge protector is to protect the lines it is connected to. The surge protector is used in power circuits or communication lines. Its principle is to conduct and shunt the impact current through the internal varistor, thereby preventing the impact current from damaging the equipment on the power circuit or communication line. During daily use, the lightning protection components inside the surge protector will be damaged, causing the leakage current to continue to flow through the surge protector. The function of the thermal release module is to enable the surge protector to be able to disconnect from the protected circuit in a timely and reliable manner when a continuous small current flows through it.

[0003] When a thermal trip occurs in an existing surge protector, the action signal of the action component is converted into an electrical signal through the cooperation between the action component and the sensor or circuit structure in the smart box. The analog electrical signal is then converted into a digital electrical signal through the relevant circuit in the smart box, and the electrical signal is sent to an external host computer through a communication unit. The smart box needs to be powered by an external or its own power supply to realize the operation of each internal power-consuming unit. Therefore, the deployment and operation of traditional surge protectors need to consider power supply factors, and the setting of external power supply lines and the maintenance of their own power supply have a greater impact on it. Utility Model Content

[0004] On the one hand, the utility model provides a multi-connected surge protector signal transmission device, which can power the smart box of the surge protector without the need for an external circuit or a built-in power supply;

[0005] On the other hand, the utility model provides a surge protector.

[0006] The utility model provides a multi-connected surge protector signal transmission device, comprising an intelligent box, wherein the intelligent box comprises a chassis member and an optical fiber, wherein a first bracket structure and a linkage member are provided on the chassis member, wherein the optical fiber is overlapped on the first bracket structure at a corresponding position, wherein the linkage member comprises at least two first linkage parts and one second linkage part, wherein each of the first linkage parts cooperates with an actuating part of a thermal release assembly of a surge protector, and the second linkage part can cooperate with the first bracket structure to bend the optical fiber, and wherein the end of the optical fiber is coupled to a monitoring host.

[0007] Furthermore, the linkage member includes a rod body rotatably matched with the chassis member, and the rod body protrudes radially to fix the first linkage part and the second linkage part.

[0008] Furthermore, the first bracket structure includes a support member, which is fixedly connected to the chassis member. Along the extension direction of the optical fiber, two support members are arranged on the chassis member at intervals, and a matching groove for the second linkage part to be rotated into is formed between the two support members. The support member has an abutment end face, and the optical fiber passes through the abutment end face and is in contact with the abutment end face or there is a gap.

[0009] Furthermore, a spring member is provided between the rod body and the chassis member.

[0010] Furthermore, the second linkage portion is provided with a first clamping member, and two first clamping members are arranged at intervals along a direction perpendicular to the extending direction of the optical fiber at one end of the second linkage portion facing the supporting member.

[0011] Furthermore, the support member is provided with a second clamping member, and two of the second clamping members are spaced apart in a direction perpendicular to the extending direction of the optical fiber, and the channel structure for the optical fiber to pass through is formed between the two second clamping members.

[0012] Furthermore, the lever arm length of the second linkage portion is smaller than the lever arm length of the first linkage portion.

[0013] Furthermore, two connecting terminals are provided on the chassis component, and the optical fiber includes an inner fiber and an outer fiber. The inner fiber is located in the chassis component and its two ends are respectively connected to the two connecting terminals, and two adjacent chassis components are connected via the outer fiber between the connecting terminals.

[0014] Furthermore, a window structure is provided on the chassis, and two ends of the optical fiber respectively pass through the window structure and extend out of the chassis.

[0015] The surge protector provided by the utility model comprises a lightning protection module and a backup protection module, wherein the lightning protection module and the backup protection module are respectively fixedly matched with the intelligent box of the signal transmission device of the multi-connection surge protector as described in any one of the above items.

[0016] Beneficial Effects

[0017] Compared with the traditional solution, the method used in this solution to obtain the action signal of the action part in the thermal trip assembly and send the action signal of the action part to the external host computer does not require power supply to the smart box of the surge protector itself. Therefore, the surge protector in this solution can be deployed and operated in areas without power supply conditions. The monitoring host is located at the remote end, which is connected to the surge protector through an optical fiber, and there is only one optical fiber bending point corresponding to its thermal trip action in the chassis. When any surge protector in a multi-connected surge protector device undergoes a thermal trip action, the second linkage part triggers the optical fiber at the first bracket structure on the chassis to produce a bend, thereby reducing the impact on the optical path of the remote end of the optical fiber, so that a monitoring host can be connected in series with more multi-connected surge protector devices, and the thermal trip signals of all multi-connected surge protector devices are transmitted through the optical path of one optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the chassis provided by the embodiment of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of the linkage member provided in the embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the second linkage part provided by an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the cooperation between the support member and the optical fiber provided in the embodiment of the utility model.

[0023] Figure numbers: 1-chassis member; 2-optical fiber; 3-linking member; 4-rod body; 5-second linking part; 6-first linking part; 7-first clamping member; 8-support member; 9-matching groove; 10-second clamping member; 11-channel structure. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] Example

[0026] like Figures 1 to 4 A multi-connected surge protector signal transmission device is shown, including a smart box, which includes a chassis 1 and an optical fiber 2. The chassis 1 is provided with a first bracket structure and a linkage 3. The optical fiber 2 is overlapped on the first bracket structure at a corresponding position. The linkage 3 includes at least two first linkage parts 6 and one second linkage part 5. Each first linkage part 6 cooperates with an actuating part of a thermal release assembly of a surge protector. The second linkage part 5 can cooperate with the first bracket structure to bend the optical fiber 2, and the end of the optical fiber 2 is coupled to the monitoring host.

[0027] In order to get rid of the constraints of existing power supply factors on the deployment and operation of surge protectors, the optical fiber 2 in this solution is mounted on the first bracket structure of the chassis 1. When the surge protector is thermally tripped, its action member cooperates with the first linkage part 6 of the linkage member 3, and cooperates with the first bracket structure through the second linkage part 5, so that the optical fiber 2 at this position is bent. The bending of the optical fiber 2 can be monitored by the monitoring host coupled to its end, and the monitoring host then obtains a signal that the surge protector has thermally tripped, and sends the signal to the host computer. One end of the optical fiber 2 in this solution is coupled to the monitoring host. Preferably, the monitoring host includes an optical time domain reflectometer, which can obtain attenuation information based on the backscattered light generated when light propagates in the optical fiber 2. Using this characteristic, the fault point of the optical fiber 2 can be located. When the action member and the corresponding position of the optical fiber 2 are offset to cause the optical fiber 2 at that location to bend, the optical time domain reflectometer can measure the light information at that location, thereby obtaining information that the surge protector corresponding to the bending point of the optical fiber 2 has thermally tripped.

[0028] In this solution, a chassis member 1 cooperates with multiple surge protectors to form a multi-link surge protector device, and the linkage member 3 includes multiple first linkage parts 6, each of which corresponds to an action member of a surge protector. The linkage member 3 includes a second linkage part 5, and the bending of the optical fiber 2 is achieved by cooperating with the first bracket structure through the second linkage part 5. In this solution, a monitoring host corresponds to multiple multi-link surge protector devices in series, and the bending of the optical fiber 2 at each location causes loss to the optical path at the far end of the optical fiber 2. When the optical path is weakened to a certain value, the monitoring host cannot detect the bending at the far end of the optical fiber 2. Therefore, for a multi-link surge protector device with more connections in series, there is only one bending point of the optical fiber 2 corresponding to its thermal tripping action in the chassis member 1 of a multi-link surge protector device in this solution. When any surge protector in a multi-link surge protector device has a thermal tripping action, the second linkage part 5 is triggered to generate a bending of the optical fiber 2 at the first bracket structure on the chassis member 1, thereby reducing the impact on the optical path at the far end of the optical fiber 2.

[0029] Compared with the traditional solution, the method used in this solution to obtain the action signal of the action part in the thermal trip assembly and send the action signal of the action part to the external host computer does not need to power the smart box of the surge protector itself. The smart box does not have a power consumption unit. Therefore, the surge protector in this solution can be deployed and operated in areas without power supply conditions. At the same time, the surge protector does not have a built-in power supply, and there is no maintenance of its own power supply. The monitoring host is located at the remote end and is connected to the surge protector through an optical fiber 2. The transmission of the thermal trip signal of the surge protector is realized through the optical path of optical fiber 2. Compared with the existing transmission method through wireless signals, the optical path of optical fiber 2 is not easy to be interfered with.

[0030] In an optional embodiment, the linkage member 3 includes a rod body 4 rotatably matched with the chassis member 1 , and the rod body 4 protrudes radially and is fixed with a first linkage portion 6 and a second linkage portion 5 .

[0031] A plurality of first linkage parts 6 are arranged at intervals along the axial direction of the rod body 4, corresponding to the actuating parts of the thermal release components of each surge protector. The second linkage part 5 is arranged on the rod body 4 at a position corresponding to the first bracket structure. When the surge protector undergoes a thermal release action, the end of its actuating part pushes the corresponding first linkage part 6, causing the rod to rotate, driving the second linkage part 5 to rotate and cooperate with the first bracket structure, so that the optical fiber 2 at this position is bent.

[0032] In an optional embodiment, the first bracket structure includes a support member 8, which is fixedly connected to the chassis member 1. Along the extension direction of the optical fiber 2, two support members 8 are arranged on the chassis member 1 at intervals, and a matching groove 9 for the second linkage part 5 to be rotated into is formed between the two support members 8. The support member 8 has an abutment end face, and the optical fiber 2 passes through the abutment end face and is in contact with the abutment end face or there is a gap.

[0033] The optical fiber 2 can be bent between the two support members 8 by being pushed by the second linkage part 5. A tensioning member is provided on the chassis member 1. The optical fiber 2 is coiled in the chassis member 1 by being wound around the tensioning member and passes through the first bracket structure and remains in a tensioned state. The distance between the optical fiber 2 at the tensioning member and the chassis member 1 is smaller than the distance between the abutting end face of the support member 8 and the chassis member 1. Therefore, when passing through the support member 8, the optical fiber 2 fits with the abutting end face of the support member 8 and is lifted to a distance away from the chassis member 1 by the abutting end face, so that the optical fiber 2 can generate a deformation that can be measured by the monitoring host when it is pushed by the second linkage part 5.

[0034] Specifically, the second linkage part 5 rotates until its end cuts into between the two support members 8, causing compression of the optical fiber 2 between the two support members 8, and the two support members 8 support the optical fiber 2, so that the optical fiber 2 between the two support members 8 is bent, and the deformation range is limited to between the two support members 8, and will not affect the optical fiber 2 between two adjacent support members 8.

[0035] In an optional embodiment, a spring member is provided between the rod body 4 and the chassis member 1 .

[0036] The spring member generates an elastic force on the rod body 4, so that the second linkage part 5 on the rod body 4 remains uncoordinated with the optical fiber 2, causing the optical fiber 2 to be bent. When the surge protector undergoes a thermal trip action, the end of its actuating member pushes the corresponding first linkage part 6, causing the rod member to overcome the elastic force of the spring member and rotate, driving the second linkage part 5 to bend the optical fiber 2 at that position.

[0037] Since the actuating member of the thermal trip assembly always remains in contact with the first linkage portion 6 after the thermal trip action occurs, the second linkage portion 5 always keeps the optical fiber 2 at this position bent.

[0038] In an optional embodiment, the second linking portion 5 is provided with a first clamping member 7 , and two first clamping members 7 are spaced apart at one end of the second linking portion 5 facing the supporting member 8 along a direction perpendicular to the extending direction of the optical fiber 2 .

[0039] The two first clamping parts 7 are arranged at intervals on the end face of the second linking part 5, and a gap is formed between the two first clamping parts 7. When the second linking part 5 is rotated to contact the optical fiber 2, the optical fiber 2 can cut into between the two second clamping parts 10 through the edge of the gap between the two second clamping parts 10 and be constrained by the two second clamping parts 10, so that the optical fiber 2 is pushed by the end face of the second linking part 5 in the gap.

[0040] In an optional embodiment, a second clamping member 10 is provided on the support member 8, and the two second clamping members 10 are spaced apart in a direction perpendicular to the extension direction of the optical fiber 2, and a channel structure 11 for the optical fiber 2 to pass through is formed between the two second clamping members 10.

[0041] One end of the support member 8 is fixed on the chassis member 1, and the other end has an end face for abutting against the optical fiber 2. Two second clamping members 10 are arranged on the end face at intervals, and a channel structure 11 is formed together with the end face. When arranged, the optical fiber 2 passes through the channel structure 11 and is constrained by the end face of the support member 8 and the two second clamping members 10, so as to facilitate the assembly between the optical fiber 2 and the chassis member 1, and ensure that the position of the optical fiber 2 and the support member 8 is relatively fixed when the second linkage part 5 pushes the optical fiber 2.

[0042] In an optional embodiment, the lever arm length of the second linkage portion 5 is smaller than the lever arm length of the first linkage portion 6 .

[0043] The lever arm length of the second linkage part 5 refers to the distance between the position where the second linkage part 5 contacts the optical fiber 2 and the rotation axis of the rod body 4. The lever arm length of the first linkage part 6 refers to the distance between the position where the first linkage part 6 contacts the actuating part of the thermal release assembly and the rotation axis of the rod body 4. The stroke of the actuating part is relatively large. In order to avoid the second linkage part 5 bending the optical fiber 2 to cause complete blocking of the light path, or the bending of the optical fiber 2 to cause a large loss of the light path at the far end of the optical fiber 2, affecting the monitoring host's signal detection of the multi-connected surge protector integrated component at the far end of the optical fiber 2, the stroke of the second linkage part 5 in this scheme is relatively small, so that the second linkage part 5 pushes the optical fiber 2 to cause a smaller bending.

[0044] In an optional embodiment, two connecting terminals are provided on the chassis member 1, and the optical fiber 2 includes an inner fiber and an outer fiber. The inner fiber is located inside the chassis member 1 and its two ends are respectively connected to the two connecting terminals, and two adjacent chassis members 1 are connected via the outer fiber between the connecting terminals.

[0045] One monitoring host corresponds to multiple multi-connected surge protector assemblies. The monitoring host and the chassis component 1 of the multi-connected surge protector assembly, and the chassis component 1 of the multi-connected surge protector assembly and other chassis components 1 are connected through external fibers. The inner fiber in the chassis component 1 cooperates with the first bracket structure, and the inner fiber and the outer fiber are connected through connecting terminals, so that an optical fiber 2 composed of the inner fiber and the outer fiber connects the monitoring host and each multi-connected surge protector assembly in series.

[0046] The two connecting terminals on the chassis component 1 of each multi-connection surge protector assembly form one incoming path and the other outgoing path. When connecting the chassis components 1, one end of an external fiber is connected to a connecting terminal on one chassis component 1 for forming an incoming path, and the other end is connected to a connecting terminal on another chassis component 1 for forming an outgoing path.

[0047] Alternatively, the chassis 1 is provided with a window structure, and the two ends of the optical fiber 2 extend out of the chassis 1 through the window structures. The two window structures, one forming an inlet and the other forming an outlet, when connecting the chassis 1, one end of the optical fiber 2 extends through the window structure for forming an inlet on the chassis 1, and is connected to the optical fiber 2 extending through the window structure for forming an outlet on the other chassis 1. The two optical fibers 2 are fused, or a section of the optical fiber 2 is fused between the two as a connection section.

[0048] The surge protector provided by the utility model comprises a lightning protection module and a backup protection module. The lightning protection module and the backup protection module are respectively fixedly matched with the intelligent box of the signal transmission device of the multi-connection surge protector.

[0049] The smart box includes a chassis part 1, and the lightning protection module includes a lightning protection element and a thermal release assembly, which form a surge protector. A chassis part 1 cooperates with multiple surge protectors to form a multi-link surge protector integrated part, and a monitoring host corresponds to multiple multi-link surge protector integrated parts. The thermal release assembly cooperates with the optical fiber 2 in the chassis part 1 of the smart box through the action part, and the optical fiber 2 cooperates with the monitoring host to send the action signal of the action part to the external host computer.

[0050] It should be noted that any of the above embodiments is illustrative of the present invention rather than limiting the present invention, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words primary, secondary, previous, and next, etc. does not indicate any order. These words may be interpreted as names.

[0051] The above implementation modes are only suitable for illustrating the present invention, but not for limiting the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A multi-connection surge protector signal transmission device, comprising a smart box, characterized in that: The smart box comprises a chassis (1) and an optical fiber (2); a first bracket structure and a linkage (3) are provided on the chassis (1); the optical fiber (2) is overlapped on the first bracket structure at a corresponding position; the linkage (3) comprises at least two first linkage parts (6) and one second linkage part (5); each of the first linkage parts (6) cooperates with an actuating part of a thermal release assembly of a surge protector; the second linkage part (5) can cooperate with the first bracket structure to bend the optical fiber (2); and the end of the optical fiber (2) is coupled to a monitoring host.

2. The multi-connection surge protector signal transmission device according to claim 1, characterized in that: The linkage member (3) comprises a rod body (4) rotatably matched with the chassis member (1), the rod body (4) protruding radially and fixedly provided with the first linkage portion (6) and the second linkage portion (5).

3. The multi-connection surge protector signal transmission device according to claim 2, characterized in that: The first support structure comprises a support member (8), the support member (8) being fixedly connected to the chassis member (1); along the extension direction of the optical fiber (2), two support members (8) are arranged on the chassis member (1) at intervals; a matching groove (9) for the second linkage part (5) to rotate into is formed between the two support members (8); the support member (8) has an abutting end face; the optical fiber (2) passes through the abutting end face and is in contact with the abutting end face or has a gap therebetween.

4. The multi-connection surge protector signal transmission device according to claim 3, characterized in that: A spring component is provided between the rod body (4) and the chassis component (1).

5. The multi-connection surge protector signal transmission device according to claim 3, characterized in that: The second linking portion (5) is provided with a first clamping member (7), and two first clamping members (7) are arranged at intervals along a direction perpendicular to the extension direction of the optical fiber (2) at one end of the second linking portion (5) facing the support member (8).

6. The multi-connection surge protector signal transmission device according to claim 5, characterized in that: The support member (8) is provided with a second clamping member (10), two of the second clamping members (10) are arranged at intervals in a direction perpendicular to the extension direction of the optical fiber (2), and a channel structure (11) for the optical fiber (2) to pass through is formed between the two second clamping members (10).

7. The multi-connection surge protector signal transmission device according to claim 2, characterized in that: The lever arm length of the second linkage part (5) is smaller than the lever arm length of the first linkage part (6).

8. The multi-connection surge protector signal transmission device according to claim 3, characterized in that: Two connection terminals are provided on the chassis component (1); the optical fiber (2) comprises an inner fiber and an outer fiber; the inner fiber is located in the chassis component (1) and has two ends respectively connected to the two connection terminals; two adjacent chassis components (1) are connected via the outer fiber between the connection terminals.

9. The multi-connection surge protector signal transmission device according to claim 3, characterized in that: The chassis component (1) is provided with a window structure, and two ends of the optical fiber (2) respectively pass through the window structure and extend out of the chassis component (1).

10. A surge protector, comprising a lightning protection module and a backup protection module, characterized in that: The lightning protection module and the backup protection module are respectively fixedly matched with the intelligent box of the multi-connection surge protector signal transmission device as described in any one of claims 1-9.

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